Solve the Problem $= 3$ Feet; Height $= 6$ Feet
B) Length $= 2$

Multiple Choice

Solve the problem.
-A bookcase is to be constructed as shown in the figure below. The height of the bookcase is 3 feet longer than the length of a shelf. If 18 feet of lumber is available for the entire unit (including the shelves, but NOT the back of the bookcase) , find the length and height of the unit.

A) length $= 3$ feet; height $= 6$ feet
B) length $= 2$ feet; height $= 6$ feet
C) length $= 2$ feet; height $= 5$ feet
D) length $= 7.5$ feet; height $= 9.0$ feet